1909. Notes. 253 



NOTES. 



BOTANY. 



Cluster-Cups on Barberry. 



On the 3id of August last I noticed a specimen of the Common Bar- 

 berry {/yerhen's 7'iilgaris. Linn.) growing on a hedge near Skerr}-, co. 

 Antrim. The leaves -were covered with the cluster-cup stage of the 

 fungus Puccinia graininis, Pers. In connection with the relation between 

 this stage of the fungus and wheat rusts, its occurrence seems worth 



recording. 



J. Adams. 



Royal College of vScience, I)ui)lin. 



Fusicladium dendriticum on Wild Crab. 



On the 2ist ot July, near the Hill of Tara, in Co. Meath, I observed a 



number of fruits of the Wild Crab, covered with Apple Scab {Fusicladium 



dtndriticum, Fuckel). This disease is rather common in orchards on the 



cultivated Apple, but I have seen no previous record of its occurrence on 



the Wild Crab. It is supposed to have been introduced with Apple 



trees, but its occurrence on Crab makes it possil)le that it is a native 



species of fungus, 



J. Adams. 

 Royal College of Science, Dublin. 



Bartsia viscosa in Connemara. 



]\Ir. A. R. Sanderson, whose discovery of Sisyrinchiuin angiisiifoliiim in 

 Donegal is referred to in a recent number (p. 222), writes me that when 

 camping with a party of English botanists at Dog's Bay, in August, about 

 a dozen plants oi Barisia viscosa were noticed in a potato field, a quarter 

 of a mile east* of Dog's Bay. The find is very interesting. The plant 

 is admittedly native in the South of Ireland (Kerry to Waterford). Its 

 only other Irish stations are two, situated on Lough vSwill}-, W. Donegal ; 

 and while its wide western range in Great Britain (Sussex and Cornwall to 

 Argyll) offers no obstacle to its being native in Donegal (as held by H. C. 

 Hart), the Editors of Cybelc Hibernica inclined to the view that it may have 

 been introduced from S. Scotland, the evidence quoted in favour of that 

 view being the wide gap between its Donegal and southern stations. While 

 the Connemara station is in itself unsatisfactory, by reason of its being 

 on cultivated land, and of the small quantity of the plant observed, it 

 nevertheless bridges the gap and strengthens the case for Bartsia viscosa 

 being native throtighout its Irish range. And if the plant has only now 

 been detected in the comparatively well-known Roundstone district, it 

 seems possible that the future will reveal other stations in unexplored 

 portions of Galway or of Mavo. 



R. L 1,0 YD Praicgbr. 



Dublin. 



